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21 pages, 2172 KiB  
Article
Crude Drugs for Clearing Heat Contain Compounds Exhibiting Anti-Inflammatory Effects in Interleukin-1β-Treated Rat Hepatocytes
by Airi Fujii, Saki Onishi, Nodoka Watanabe, Mizuki Kajimura, Kentaro Ito, Keita Minamisaka, Yuto Nishidono, Saki Shirako, Yukinobu Ikeya and Mikio Nishizawa
Molecules 2025, 30(2), 416; https://doi.org/10.3390/molecules30020416 - 19 Jan 2025
Viewed by 366
Abstract
Traditional Japanese medicines, i.e., Kampo medicines, consist of crude drugs (mostly plants) that have empirical pharmacological functions (‘Yakuno’ in Japanese), such as clearing heat. Crude drugs with cold properties, such as Phellodendron bark, have the empirical function of clearing heat as [...] Read more.
Traditional Japanese medicines, i.e., Kampo medicines, consist of crude drugs (mostly plants) that have empirical pharmacological functions (‘Yakuno’ in Japanese), such as clearing heat. Crude drugs with cold properties, such as Phellodendron bark, have the empirical function of clearing heat as they cool the body. Because we found that anti-inflammatory compounds were present in several crude drugs for clearing heat, it is speculated that the empirical function of clearing heat may be linked to anti-inflammatory activities. When 10 typical crude drugs were selected from 22 herbal crude drugs for clearing heat, we identified anti-inflammatory compounds in five crude drugs, including Phellodendron bark. In this study, the other crude drugs were extracted and partitioned with ethyl acetate (EtOAc) and n-butanol to obtain three crude fractions. All the EtOAc-soluble fractions, except that from Forsythia fruits, inhibited interleukin (IL)-1β-induced nitric oxide (NO) production in primary-cultured rat hepatocytes. Anti-inflammatory compounds were identified from these EtOAc-soluble fractions: baicalein from Scutellaria roots, (−)-nyasol from Anemarrhena rhizomes, and loniflavone from Lonicera leaves and stems. (+)-Phillygenin was purified from Forsythia fruits by removing cytotoxic oleanolic and betulinic acids. These compounds suppressed the production of NO and cytokines in hepatocytes. Anti-inflammatory compounds were not purified from the EtOAc-soluble fraction of Rehmannia roots because of their low abundance. Collectively, these findings indicate that anti-inflammatory compounds are present in all 10 crude drugs for clearing heat, confirming that these anti-inflammatory compounds in crude drugs provide the empirical functions for clearing heat. Other empirical functions of Kampo medicine can also be explained by modern pharmacological activities. Full article
(This article belongs to the Special Issue Natural Bioactive Compounds from Traditional Asian Plants)
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Graphical abstract

Graphical abstract
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<p>The chemical structures of the compounds purified in this study. Baicalein (Compound <b>1</b>) from <span class="html-italic">Scutellaria</span> roots, (−)-nyasol (<b>2</b>) from <span class="html-italic">Anemarrhena</span> rhizomes, loniflavone (<b>3</b>) from <span class="html-italic">Lonicera</span> leaves and stems, and (+)-phillygenin (<b>4</b>) from <span class="html-italic">Forsythia</span> fruits.</p>
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<p>HPLC chromatograms of baicalein (standard; upper) and Fraction A from the <span class="html-italic">Scutellaria</span> root extract (lower). HPLC was used for this analysis, as described in <a href="#sec4-molecules-30-00416" class="html-sec">Section 4</a>. The arrow indicates the peak of baicalein.</p>
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<p>The effects of baicalein on the expression of the <span class="html-italic">iNOS</span> gene in hepatocytes. (<b>A</b>) The effects of baicalein on NO production. Baicalein and IL-1β were added to the medium of primary-cultured rat hepatocytes and incubated for 8 h. The nitrate concentrations in the medium were measured as NO. Cytotoxicity was not observed at the concentrations applied. (<b>B</b>) An immunoblot analysis of the iNOS protein. Hepatocyte extracts were prepared from hepatocytes in (<b>A</b>) and analyzed by immunoblotting to detect the iNOS (130 kDa) and the internal control β-tubulin (55 kDa). (<b>C</b>) The levels of <span class="html-italic">iNOS</span> mRNA and (<b>D</b>) <span class="html-italic">iNOS</span> antisense transcript (<span class="html-italic">iNOS-AS</span>). Total RNA was extracted 3 h after the addition of baicalein and subjected to quantitative reverse transcription–polymerase chain reaction (RT–qPCR). The level of each mRNA was measured and normalized to the elongation factor 1α (<span class="html-italic">Ef1a</span>) mRNA level. Relative mRNA levels (%) are presented as the means ± SDs (<span class="html-italic">n</span> = 3) when the measured mRNA level was set as 100% in the presence of IL-1β alone. ** <span class="html-italic">p</span> &lt; 0.01 versus IL-1β alone. (<b>E</b>) The time course of the <span class="html-italic">iNOS</span> mRNA levels. After the addition of 40 μM baicalein (<span class="html-italic">t</span> = 0 h), total RNA was extracted at the indicated times and subjected to RT–qPCR. Relative mRNA levels (%) were normalized to <span class="html-italic">Ef1a</span> mRNA levels and are presented as the means ± SDs (<span class="html-italic">n</span> = 3), and the mRNA level measured 6 h after the addition of IL-1β was set as 100%. ** <span class="html-italic">p</span> &lt; 0.01 versus IL-1β alone.</p>
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<p>The effects of (−)-nyasol on the expression of proinflammatory genes. (<b>A</b>) NO levels. (−)-Nyasol and IL-1β were added to the hepatocyte medium and incubated. Cytotoxicity was not observed at the concentrations applied. After 4 h, the total RNA was extracted and subjected to RT–qPCR. Each mRNA level was measured in triplicate and normalized to the <span class="html-italic">Ef1a</span> mRNA level: (<b>B</b>) <span class="html-italic">iNOS</span> mRNA; (<b>C</b>) <span class="html-italic">Tnf</span> mRNA; and (<b>D</b>) lymphotoxin β (<span class="html-italic">Ltb</span>) mRNA. The relative mRNA levels (%) are presented as the means ± SDs (<span class="html-italic">n</span> = 3) when the mRNA level was set at 100% in the presence of IL-1β alone. * <span class="html-italic">p</span> &lt; 0.05 and ** <span class="html-italic">p</span> &lt; 0.01 versus IL-1β alone.</p>
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<p>The effects of loniflavone on the expression of proinflammatory genes. (<b>A</b>) Decreased NO production by baicalein in hepatocytes. Loniflavone and IL-1β were added to the medium of primary-cultured rat hepatocytes and incubated for 8 h until the NO concentration was measured. Cytotoxicity was not observed at the concentrations applied. (<b>B</b>–<b>D</b>) mRNA levels in hepatocytes. After incubation with loniflavone and IL-1β, the total RNA was extracted and subjected to RT–qPCR. The levels of each mRNA were measured in triplicate and normalized to the <span class="html-italic">Ef1a</span> mRNA level. The relative mRNA levels (%) of <span class="html-italic">iNOS</span> (<b>B</b>), <span class="html-italic">Tnf</span> mRNA (<b>C</b>), and <span class="html-italic">Il1r1</span> (<b>D</b>) are presented as the means ± SDs (<span class="html-italic">n</span> = 3), when the measured mRNA level was set at 100% in the presence of IL-1β alone. * <span class="html-italic">p</span> &lt; 0.05 and ** <span class="html-italic">p</span> &lt; 0.01 versus IL-1β alone.</p>
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<p>The cytotoxicity of oleanolic acid and betulinic acid. (<b>A</b>) The cytotoxicity of oleanolic acid and betulinic acid, measured by LDH activity in the hepatocyte medium. Oleanolic acid, betulinic acid, or (+)-phillygenin was added to the medium at the indicated concentrations. After incubation for 8 h, the LDH activity of the medium was measured. When the LDH activity of the whole-cell extract (WCE) of hepatocytes on a dish was set at 100%, each LDH activity was recorded. ** <span class="html-italic">p</span> &lt; 0.01 versus LDH activity at 0 μM. (<b>B</b>) The chemical structures of oleanolic acid and betulinic acid.</p>
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<p>The effects of (+)-phillygenin on the expression of proinflammatory genes. (<b>A</b>) A decrease in NO production by (+)-phillygenin in hepatocytes. (+)-Phillygenin and IL-1β were added to the medium of primary-cultured rat hepatocytes and incubated for 8 h until the NO concentration was measured. Cytotoxicity was not observed at the concentrations applied. (<b>B</b>–<b>D</b>) mRNA levels in hepatocytes. After incubation with (+)-phillygenin and IL-1β, the total RNA was extracted. The level of each mRNA was measured by RT–qPCR and normalized to the <span class="html-italic">Ef1a</span> mRNA level. The relative mRNA levels (%) of <span class="html-italic">iNOS</span> mRNA (<b>B</b>), <span class="html-italic">Tnf</span> mRNA (<b>C</b>), and <span class="html-italic">Il1r1</span> mRNA are presented as the means ± SDs (<span class="html-italic">n</span> = 3) when the mRNA level measured was set at 100% in the presence of IL-1β alone. * <span class="html-italic">p</span> &lt; 0.05 and ** <span class="html-italic">p</span> &lt; 0.01 versus IL-1β alone.</p>
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<p>A flowchart showing the purification of compounds from crude drugs for clearing heat. Methanol extracts from crude drugs were fractionated into three fractions to purify the compounds by silica gel chromatography, preparative thin-layer chromatography (TLC), and so forth. Each fraction or compound was subjected to measurements of the nitric oxide (NO) production in interleukin (IL)-1β-treated hepatocytes.</p>
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19 pages, 1319 KiB  
Article
Towards Failure-Aware Inference in Harsh Operating Conditions: Robust Mobile Offloading of Pre-Trained Neural Networks
by Wenjing Liu, Zhongmin Chen and Yunzhan Gong
Electronics 2025, 14(2), 381; https://doi.org/10.3390/electronics14020381 - 19 Jan 2025
Viewed by 204
Abstract
Pre-trained neural networks like GPT-4 and Llama2 have revolutionized intelligent information processing, but their deployment in industrial applications faces challenges, particularly in harsh environments. To address these related issues, model offloading, which involves distributing the computational load of pre-trained models across edge devices, [...] Read more.
Pre-trained neural networks like GPT-4 and Llama2 have revolutionized intelligent information processing, but their deployment in industrial applications faces challenges, particularly in harsh environments. To address these related issues, model offloading, which involves distributing the computational load of pre-trained models across edge devices, has emerged as a promising solution. While this approach enables the utilization of more powerful models, it faces significant challenges in harsh environments, where reliability, connectivity, and resilience are critical. This paper introduces failure-resilient inference in mobile networks (FRIM), a framework that ensures robust offloading and inference without the need for model retraining or reconstruction. FRIM leverages graph theory to optimize partition redundancy and incorporates an adaptive failure detection mechanism for mobile inference with efficient fault tolerance. Experimental results on DNN models (AlexNet, ResNet, VGG-16) show that FRIM improves inference performance and resilience, enabling more reliable mobile applications in harsh operating environments. Full article
(This article belongs to the Special Issue New Advances in Distributed Computing and Its Applications)
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<p>A pre-trained model-based mobile inference with redundancy.</p>
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<p>An execution graph of neural network models with redundant offloading.</p>
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<p>An example for partition offloading with redundancy.</p>
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<p>An example for adapting redundancy.</p>
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<p>Execution graph with redundant model partitions.</p>
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<p>Average accuracy of FRIM and other strategies under different numbers of failures.</p>
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<p>Latency for ten inference queries on FRIM and other strategies.</p>
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15 pages, 8700 KiB  
Article
Navigation Path Prediction for Farmland Road Intersections Based on Improved Context Guided Network
by Xuyan Li and Zhibo Wu
Sustainability 2025, 17(2), 753; https://doi.org/10.3390/su17020753 - 18 Jan 2025
Viewed by 495
Abstract
Agricultural navigation, as an essential part of smart agriculture, is a crucial step in realizing intelligence and, compared with the structured features of urban roads, such as lane-keeping lines, traffic guidance lines, etc., the field environment is more complex. Especially at agricultural intersections, [...] Read more.
Agricultural navigation, as an essential part of smart agriculture, is a crucial step in realizing intelligence and, compared with the structured features of urban roads, such as lane-keeping lines, traffic guidance lines, etc., the field environment is more complex. Especially at agricultural intersections, traditional navigation line extraction algorithms make it difficult to achieve the automatic prediction of multiple road navigation lines due to complex unstructured features such as weeds and trees. Therefore, this study proposed a field road navigation line prediction method based on an improved context guided network (CGNet), which can quickly, stably, and accurately detect intersection fields and promptly predict navigation lines for two different directional paths at intersections. Firstly, CGNet will be used to learn the local features of intersections and the joint features of video frames before and after the surrounding environment. Then, the CGNet with a self-attention block module is proposed by adding the self-attention mechanism to improve the semantic segmentation accuracy of CGNet in field road scenes, and the detection speed is not significantly reduced. The semantic segmentation accuracy mIoU is 0.89, and the processing speed is 104 FPS. Subsequently, a field road centerline extraction algorithm is proposed based on the partitioning idea, which can accurately obtain the centerlines of road intersections in the image. The average lateral deviation of each centerline is less than 4%. This study achieved the prediction of intersection navigation lines in mountainous field road scenes, which can provide technical support for field operation road planning of agricultural equipment such as plant protection and harvesting. At the same time, the research findings provide theoretical references for sustainable agricultural development. Full article
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<p>Overall framework.</p>
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<p>An overview of the context guided block.</p>
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<p>The architecture of CGNet network.</p>
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<p>Improved CGNet network architecture.</p>
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<p>Schematic diagram of ACG block.</p>
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<p>Schematic diagram of image partition key point selection.</p>
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<p>Image partitioning and road extraction results.</p>
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<p>Schematic diagram of classic high-precision map framework.</p>
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<p>Schematic diagram of classic high-precision map framework.</p>
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24 pages, 5134 KiB  
Article
A Novel Data Sanitization Method Based on Dynamic Dataset Partition and Inspection Against Data Poisoning Attacks
by Jaehyun Lee, Youngho Cho, Ryungeon Lee, Simon Yuk, Jaepil Youn, Hansol Park and Dongkyoo Shin
Electronics 2025, 14(2), 374; https://doi.org/10.3390/electronics14020374 - 18 Jan 2025
Viewed by 444
Abstract
Deep learning (DL) technology has shown outstanding performance in various fields such as object recognition and classification, speech recognition, and natural language processing. However, it is well known that DL models are vulnerable to data poisoning attacks, where adversaries modify or inject data [...] Read more.
Deep learning (DL) technology has shown outstanding performance in various fields such as object recognition and classification, speech recognition, and natural language processing. However, it is well known that DL models are vulnerable to data poisoning attacks, where adversaries modify or inject data samples maliciously during the training phase, leading to degraded classification accuracy or misclassification. Since data poisoning attacks keep evolving to avoid existing defense methods, security researchers thoroughly examine data poisoning attack models and devise more reliable and effective detection methods accordingly. In particular, data poisoning attacks can be realistic in an adversarial situation where we retrain a DL model with a new dataset obtained from an external source during transfer learning. By this motivation, we propose a novel defense method that partitions and inspects the new dataset and then removes malicious sub-datasets. Specifically, our proposed method first divides a new dataset into n sub-datasets either evenly or randomly, inspects them by using the clean DL model as a poisoned dataset detector, and finally removes malicious sub-datasets classified by the detector. For partition and inspection, we design two dynamic defensive algorithms: the Sequential Partitioning and Inspection Algorithm (SPIA) and the Randomized Partitioning and Inspection Algorithm (RPIA). With this approach, a resulting cleaned dataset can be used reliably for retraining a DL model. In addition, we conducted two experiments in the Python and DL environment to show that our proposed methods effectively defend against two data poisoning attack models (concentrated poisoning attacks and random poisoning attacks) in terms of various evaluation metrics such as removed poison rate (RPR), attack success rate (ASR), and classification accuracy (ACC). Specifically, the SPIA completely removed all poisoned data under concentrated poisoning attacks in both Python and DL environments. In addition, the RPIA removed up to 91.1% and 99.1% of poisoned data under random poisoning attacks in Python and DL environments, respectively. Full article
(This article belongs to the Special Issue Big Data Analytics and Information Technology for Smart Cities)
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<p>Classification of adversarial attacks based on attack timing.</p>
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<p>Proposed defense method based on dataset partition and inspection.</p>
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<p>No partition vs. 2-way partition.</p>
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<p>Comparison of 2-way partition and 4-way partition.</p>
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<p>An example of the sequential partition and inspection algorithm (SPIA).</p>
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<p>An example of random partition and inspection algorithm (RPIA).</p>
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<p>Graphical representation of evaluation results for concentrated poisoning attacks (Python simulation).</p>
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<p>Graphical representation of evaluation results for random poisoning attacks (Python simulation).</p>
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<p>Example images from each class in the CIFAR-10 dataset.</p>
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<p>Graphical representation of evaluation results for concentrated poisoning attacks (DL training).</p>
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<p>Graphical representation of evaluation results for random poisoning attacks (DL training).</p>
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<p>This figure illustrates the performance of a transfer-learned model using various defense methods under concentrated poisoning attacks. The accuracy of the pre-trained model (Mt1) is 81.34%. When 20% poisoned data are added to Dt, the following transfer results are observed: (<b>a</b>) <span class="html-italic">No sanitization</span>: Without any defense method, achieves an accuracy of 61.7% under a 0% RPR. (<b>b</b>) <span class="html-italic">SPIA defense</span>: Applying the SPIA defense method with n = 100 reduces the impact of poisoning and improves the accuracy to 81.2%. (<b>c</b>) <span class="html-italic">RPIA defense</span>: Using the RPIA defense method with n = 8000 achieves an accuracy of 80.7%, effectively mitigating the poisoning attack with an RPR of 98.7%. The regions highlighted in red show the attack causes a significant number of misclassifications, particularly affecting specific classes (Class 0 and Class 1).</p>
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<p>This figure illustrates the performance of a transfer-learned model using various defense methods under random poisoning attacks, while maintaining the experimental conditions consistent with those described in <a href="#electronics-14-00374-f007" class="html-fig">Figure 7</a>: (<b>a</b>) <span class="html-italic">No sanitization</span>: Without any defense method, an accuracy of 61.7% with a 0% RPR. (<b>b</b>) <span class="html-italic">SPIA defense</span>: Applying the SPIA defense method with n = 8000 brings the model’s accuracy to 81.2% and an RPR of 97.6%. (<b>c</b>) <span class="html-italic">RPIA defense</span>: Using the RPIA defense method with n = 4000 achieves an accuracy of 80.7% and an RPR of 98.8%.</p>
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14 pages, 3054 KiB  
Article
Power Mode Division Control Strategy for AC/DC Microgrids Considering SOC
by Jiangzhou Cheng, Di Xiang, Cheng Fang and Zhehao Hu
Energies 2025, 18(2), 417; https://doi.org/10.3390/en18020417 - 18 Jan 2025
Viewed by 354
Abstract
Using hybrid energy storage systems, we propose a power mode partitioning control strategy for AC/DC microgrids that effectively mitigates frequency and voltage fluctuations. By incorporating composite virtual impedance, we categorize the state of charge (SOC) into five distinct operational modes. Supercapacitors, known for [...] Read more.
Using hybrid energy storage systems, we propose a power mode partitioning control strategy for AC/DC microgrids that effectively mitigates frequency and voltage fluctuations. By incorporating composite virtual impedance, we categorize the state of charge (SOC) into five distinct operational modes. Supercapacitors, known for their dynamic response, are prioritized to counteract power fluctuations. We assign these operational modes to the AC and DC subnetworks based on real-time changes in frequency and voltage. When significant fluctuations occur, coordinated power transmission between the subnetworks and support from the energy storage system ensure that frequency and voltage remain within acceptable limits. Simulations conducted in MATLAB/Simulink confirmed that this control strategy stabilized power fluctuations and addressed the challenges of overcharging and overdischarging in storage batteries. Full article
(This article belongs to the Section A1: Smart Grids and Microgrids)
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<p>AC/DC microgrid topology.</p>
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<p>Block diagram of the control strategy for the energy storage system.</p>
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<p>Segmentation of energy storage system operation modes.</p>
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<p>Classification of microgrid operation states.</p>
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<p>Mode 1 simulation verification.</p>
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<p>Simulation verification of conventional HESS control strategy.</p>
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<p>Mode 2 simulation verification.</p>
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<p>Mode 3 simulation verification.</p>
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<p>Mode 4 simulation verification.</p>
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<p>Mode 5 simulation verification.</p>
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36 pages, 2826 KiB  
Article
Design and Modeling of an Intelligent Robotic Gripper Using a Cam Mechanism with Position and Force Control Using an Adaptive Neuro-Fuzzy Computing Technique
by Imad A. Kheioon, Raheem Al-Sabur and Abdel-Nasser Sharkawy
Automation 2025, 6(1), 4; https://doi.org/10.3390/automation6010004 - 18 Jan 2025
Viewed by 215
Abstract
Manufacturers increasingly turn to robotic gripper designs to improve the efficiency of gripping and moving objects and provide greater flexibility to these objects. Neuro-fuzzy techniques are the most widespread in developing gripper designs. In this study, the traditional gripper design is modified by [...] Read more.
Manufacturers increasingly turn to robotic gripper designs to improve the efficiency of gripping and moving objects and provide greater flexibility to these objects. Neuro-fuzzy techniques are the most widespread in developing gripper designs. In this study, the traditional gripper design is modified by adding a suitable cam that makes it compatible with the basic design, and an adaptive neuro-fuzzy inference system (ANFIS) is used in a MATLAB Simulink environment. The developed gripper investigates the follower path concerning the cam surface curve, and the gripper position is controlled using the developed ANFIS-PID. Three methods are examined in the developed ANFIS-PID controller: grid partitioning (genfis1), subtractive clustering (genfis2), and fuzzy C-means clustering (genfis3). The results show that the added cam can improve the gripping strength and that the ANFIS-PID model effectively handles the rise time and supported settling time. The developed ANFIS-PID controller demonstrates more efficient performance than Fuzzy-PID and traditional tuned-PID controllers. This proposed controller does not achieve any overshoot, and the rise time is improved by approximately 50–51%, and the steady-state error is improved by 75–95%, compared with Fuzzy-PID and tuned PID controllers. Moreover, the developed ANFIS-PID controller provides more stability for a wide range of set point displacements—0.05 cm, 0.5 cm, and 1.5 cm—during the testing period. The developed ANFIS-PID controller is not affected by disturbance, making it well suited for robotic gripper designs. Grip force control is also investigated using the proposed ANFIS-PID controller and compared with the Fuzzy-PID in three scenarios. The result from this force control proves objects’ higher actual gripping performance by using the proposed ANFIS-PID. Full article
(This article belongs to the Collection Smart Robotics for Automation)
17 pages, 3379 KiB  
Article
Deep Reinforcement Learning-Based Task Partitioning Ratio Decision Mechanism in High-Speed Rail Environments with Mobile Edge Computing Server
by Seolwon Koo and Yujin Lim
Appl. Sci. 2025, 15(2), 916; https://doi.org/10.3390/app15020916 (registering DOI) - 17 Jan 2025
Viewed by 319
Abstract
High-speed rail (HSR) environments present unique challenges due to their high mobility and dense passenger traffic, resulting in dynamic and unpredictable task generation patterns. Mobile Edge Computing (MEC) has emerged as a transformative paradigm to address these challenges by deploying computation resources closer [...] Read more.
High-speed rail (HSR) environments present unique challenges due to their high mobility and dense passenger traffic, resulting in dynamic and unpredictable task generation patterns. Mobile Edge Computing (MEC) has emerged as a transformative paradigm to address these challenges by deploying computation resources closer to end-users. However, the limited resources of MEC servers necessitate efficient task partitioning, wherein a single task is divided into multiple sub-tasks for parallel processing across MEC servers. In the context of HSR environments, the task partitioning ratio is pivotal in ensuring quality of service (QoS) and optimizing resource utilization, particularly under dynamic and high-demand conditions. This paper proposes a deep reinforcement learning (DRL)-based task partitioning mechanism using Twin Delayed Deep Deterministic Policy Gradient (TD3) for HSR environments with MEC servers (MECSs). The proposed method dynamically adjusts task partitioning ratios by leveraging real-time information about task characteristics and server load conditions. The experimental results show that when the task arrival rate is 20, the delay is improved by about 5% compared to random and about 13% compared to no_partition. When it is 50, there is no significant difference from random and about 2% improvement compared to no_partition. The task throughput is almost the same when it is 20. However, when it is 50, random is much better. We also looked at the performance change according to the number of serving MECSs. In this process, we can also note the research direction of finding an appropriate number of serving MECSs K. The results highlight the efficacy of DRL-based approaches in dynamically adapting to the unique characteristics of HSR environments, achieving optimal resource allocation and maintaining high QoS. This paper contributes to advancing task partitioning strategies for HSR systems and lays the groundwork for future research in MEC-based HSR systems. Full article
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<p>The HSR system structure with the MECS.</p>
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<p>The proposed overall environment based on the HSR system with the MECS.</p>
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<p>Task partition ratio decision algorithm flowchart using TD3.</p>
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<p>Average throughput about number of server and task arrival rate: (<b>a</b>) Number of serving MECSs (<span class="html-italic">K</span>) (5, 8, 10); (<b>b</b>) Task arrival rate in a HST (20, 30, 40, 50).</p>
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<p>Average delay about number of server and task arrival rate: (<b>a</b>) Number of serving MECSs (<span class="html-italic">K</span>) (5, 8, 10); (<b>b</b>) Task arrival rate in a HST (20, 30, 40, 50).</p>
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31 pages, 393 KiB  
Article
Statistical Aspects of Two Classes of Random Binomial Trees and Forests
by Thierry E. Huillet
Mathematics 2025, 13(2), 291; https://doi.org/10.3390/math13020291 - 17 Jan 2025
Viewed by 283
Abstract
We consider two specific families of binomial trees and forests: simply generated binomial d-ary trees and forests versus their increasing phylogenetic version, with tree nodes in increasing order from the root to any of its leaves. The analysis (both pre-asymptotic and asymptotic) [...] Read more.
We consider two specific families of binomial trees and forests: simply generated binomial d-ary trees and forests versus their increasing phylogenetic version, with tree nodes in increasing order from the root to any of its leaves. The analysis (both pre-asymptotic and asymptotic) consists of some of the main statistical features of their total progenies. We take advantage of the fact that the random distribution of those trees are obtained while weighting the counts of the underlying combinatorial trees. We finally briefly stress a rich alternative randomization of combinatorial trees and forests, based on the ratio of favorable count outcomes to the total number of possible ones. Full article
(This article belongs to the Special Issue Latest Advances in Random Walks Dating Back to One Hundred Years)
12 pages, 1328 KiB  
Article
Neonatal Thyroid-Stimulating Hormone Reference Intervals in Multi-Ethnics Population
by Hery Priyanto, Fauqa Arinil Aulia, Hartono Kahar, Muhammad Faizi, Ferdy Royland Marpaung and Aryati Aryati
Children 2025, 12(1), 104; https://doi.org/10.3390/children12010104 - 17 Jan 2025
Viewed by 313
Abstract
(1) Background: This study is designed to establish thyroid-stimulating hormone (TSH) reference intervals tailored to different neonatal age groups and Indonesian local populations. (2) Methods: Dried blood spot neonatal TSH values, from 1 January 2022 to 31 December 2023, were used to establish [...] Read more.
(1) Background: This study is designed to establish thyroid-stimulating hormone (TSH) reference intervals tailored to different neonatal age groups and Indonesian local populations. (2) Methods: Dried blood spot neonatal TSH values, from 1 January 2022 to 31 December 2023, were used to establish the neonatal TSH reference intervals partitioned by sex, gestational age, and ethnic group at different neonatal ages. (3) Results: A significant difference in the reference intervals value was observed in sex, gestational ages, and parental ethnicity groups in different neonatal age subgroups (p < 0.05). Male reference intervals were significantly higher than those of females at all neonatal ages. Late and post-term gestational age categories reference intervals were higher than early and full-term. Among the ethnic groups, Madurese had a higher upper limit TSH reference interval. (4) Conclusions: Our neonatal TSH reference intervals were needed to provide a reference adapted to the local population of Indonesia. Full article
(This article belongs to the Section Pediatric Neonatology)
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<p>Flowchart dried blood spot TSH included in the study.</p>
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<p>Dried blood spot thyroid-stimulating hormone reference intervals derived from males and females on different neonate age subgroups (hours) (M 24: Males ≤ 24; F 24: Females ≤ 24; M 24 48: Males &gt;24–48; F 24 48: Females &gt;24–48; M 48 72: Males &gt;48–72; F 48 72: Females &gt;48–72; M 72: Males &gt;72; F 72: Females &gt;72).</p>
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<p>Dried blood spot thyroid-stimulating hormone reference intervals derived from early, full, late, and post-term on different neonate age subgroups (hours). ET 24: Early Term ≤ 24; FT 24: Full Term ≤ 24; LPT 24: Late and Post Term ≤ 24; ET 24 48: Early Term &gt;24–48; FT 24 48: Full Term &gt; 24–48; LPT 24 48: Late and Post Term &gt; 24–48; ET 48 72: Early Term &gt; 48–72; FT 48 72: Full Term &gt; 48–72; LPT 48 72: Late and Post Term &gt; 48–72; ET 72: Early Term &gt; 72; FT 72: Full Term &gt; 72; LPT 72: Late and Post Term &gt; 72.</p>
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<p>Dried blood spot thyroid-stimulating hormone reference intervals derived from Javanese, Madurese, mixed Javanese–Madurese, and other parental ethnicity on different neonate age subgroups (hours). JJ 24: Javanese and Javanese ≤ 24; MM 24: Madurese and Madurese ≤ 24; JJ 24 48: Javanese and Javanese &gt; 24–48; MM 24 48: Madurese and Madurese &gt; 24–48; JO 24 48: Javanese and others &gt; 24–48; JJ 48 72: Javanese and Javanese &gt; 48–72; MM 48 72: Madurese and Madurese &gt; 48–72; JM 48 72: Javanese and Madurese &gt; 48–72; JO 48 72: Javanese and others &gt; 48–72; JJ 72: Javanese and Javanese &gt; 72; MM 72: Madurese and Madurese &gt; 72; JM 72: Javanese and Madurese &gt; 72; JO 72: Javanese and others &gt; 72.</p>
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17 pages, 8773 KiB  
Article
Foliar Application and Translocation of Radiolabeled Zinc Oxide Suspension vs. Zinc Sulfate Solution by Soybean Plants
by Anita Beltrame, João Paulo Rodrigues Marques, Mariana Ayres Rodrigues, Eduardo de Almeida, Márcio Arruda Bacchi, Elisabete Aparecida De Nadai Fernandes, Rafael Otto and Hudson Wallace Pereira de Carvalho
Agriculture 2025, 15(2), 197; https://doi.org/10.3390/agriculture15020197 - 17 Jan 2025
Viewed by 322
Abstract
The present study employed a 65Zn radioactive isotope as a tracer to investigate the foliar uptake and distribution patterns of ZnO concentrated suspension- and ZnSO4 solution-sprayed on soybean plant leaves. The radiolabeled foliar treatments were sprayed on the leaves at V4 [...] Read more.
The present study employed a 65Zn radioactive isotope as a tracer to investigate the foliar uptake and distribution patterns of ZnO concentrated suspension- and ZnSO4 solution-sprayed on soybean plant leaves. The radiolabeled foliar treatments were sprayed on the leaves at V4 and V8 phenological stages. The radioactivity of 65Zn in the leaves, roots, stems, and pods was determined using γ-ray spectrometry. After the first foliar spray, V4, the partition of radiolabeled Zn in plants treated with ZnO and ZnSO4 was 99.22% and 98.12% in treated leaves, 0.15% and 0.39% in stems, 0.16% and 0.29% in roots, and 0.47% and 1.19% in newly expanded non-treated leaves, respectively. After two sprayings, V4 and V8, the partition of radiolabeled Zn in plants treated with ZnO and ZnSO4 was 92.56% and 92.18% in treated leaves, 0.92% and 0.70% in stems, 0.52% and 0.39% in roots, 5.60% and 6.15% in newly expanded non-treated leaves, and 0.43% and 0.61% in grains, respectively. The total fraction translocated from the application tissue was 0.79% and 1.91% for ZnO and ZnSO4, respectively, after 12 days and 8.03% and 8.48% for ZnO and ZnSO4, respectively, after 72 days. An anatomical analysis revealed that plants cultivated in a nutrition solution with 10% ionic strength had 63% fewer stomata, and the xylem vessels were 63% smaller compared to plants grown in a solution with 100% Zn ionic. One can conclude that after a short period, 12 days, the absorption and translocation of ZnSO4 was higher and faster than ZnO, and after the long period, 72 days, their performance was similar. Full article
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<p>Process of application of <sup>65</sup>Zn. This figure represents the entire process of <sup>65</sup>Zn spaying in different V stages and how the plants were harvested.</p>
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<p>Steps of anatomical analyses and particle distribution on the leaf surface. Plant anatomy represents the steps to analyze the number of trichomes and stomata abaxial and adaxial and the sizes of the vessel, xylem, and phloem. Particle size and chemical map represent the steps to measure the particles of ZnO and the concentration of Zn in the drops.</p>
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<p>(<b>A</b>) 65Zn activity in plant parts from the harvest after the first harvest (treatment in V4 and harvest V6–V8). (<b>B</b>) 65Zn activity in plant parts from the harvest second harvest (treatment in V6–V8 and harvest R5.3–R5.4). Contr− is the plants cultivated in solution with 10% of Zn recommendation and no leaf application, and Contr+ is plants cultivated in solution with 100% of Zn recommendation and no leaf application. The bars indicate the standard error of the mean. The coefficient of variation is represented as CV%. Zn applied on the plant leaves was translocated to other plant parts. Values in % represent the activity of Zn in each part of the plant relative to the total activity across all parts of the plant.</p>
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<p>Analysis of the adaxial (<b>A</b>,<b>C</b>) and abaxial (<b>B</b>,<b>D</b>) of the soybean leaf surface under UV light and analyzed using epifluorescence microscopy with Imagens. It is possible to verify the autofluorescence within the guard cells—stomata (arrows) and the trichome base (Tr). (<b>E</b>,<b>F</b>) Density of stomata and trichomes on soybean leaves. Means followed by equal letters do not differ statistically from each other on an LSD (<span class="html-italic">p</span> &lt; 0.10) probability test, and the bars indicate the standard error of the mean.</p>
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<p>Cross-section of the soybean stem (<b>A</b>–<b>D</b>) of the control (<b>A</b>,<b>B</b>) and treatment (<b>C</b>,<b>D</b>) plants and biometric data of the phloem, vessel element diameter, and xylem (<b>E</b>–<b>G</b>). The soybean stems with the recommended dose of Zn present more cells of secondary xylem compared to the 10% Zn. Size of xylem and phloem in soybean stems. It is possible to verify the autofluorescence within the Epidemis (Ep—arrows), Cortex (Ct), Phloem (Ph), Cambium (C—arrows), Vessel element (Ve—arrows), Pith (Pi) and Xylem (Xl). Means followed by equal letters do not differ statistically from each other on an LSD (<span class="html-italic">p</span> &lt; 0.10) probability test, and the bars indicate the standard error of the mean.</p>
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<p>Histogram of the minor axis length (<b>A</b>). Histogram of the major axis length of the Zn nanoparticles. (<b>B</b>).</p>
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<p>Scanning electron microscopy of soybean leaf adaxial surface revealing the leaf surface morphology and the spatial distribution of Zn on the surface leaf as a function of time.</p>
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<p>Concentration of Zn in the ZnO droplet deposited on the surface of the leaf as a function of days. Bars represent standard deviation.</p>
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25 pages, 6640 KiB  
Article
Analytical Solution for Surrounding Rock Pressure of Deep-Buried Four-Hole Closely Spaced Double-Arch Tunnel
by Xianghao Sun, Qi Shi, Jian Wu, Dunwen Liu and Shan Wu
Mathematics 2025, 13(2), 286; https://doi.org/10.3390/math13020286 - 17 Jan 2025
Viewed by 288
Abstract
Research on the calculation method of deep-buried surrounding rock pressure is an important subject in engineering mathematics. The existing calculation methods are mainly the two-hole closely spaced tunnel, double-arch tunnel, three-hole closely spaced tunnel, and three-arch tunnel. The four-hole closely spaced double-arch tunnel [...] Read more.
Research on the calculation method of deep-buried surrounding rock pressure is an important subject in engineering mathematics. The existing calculation methods are mainly the two-hole closely spaced tunnel, double-arch tunnel, three-hole closely spaced tunnel, and three-arch tunnel. The four-hole closely spaced double-arch tunnel has the characteristics of both the double-arch tunnel and closely spaced tunnel, and its surrounding rock pressure distribution is more complicated. In this paper, the research is carried out based on Protodyakonov’s theory and the concept of process load. The influence of the post-construction tunnel on the supporting structure of the pre-construction tunnel is also considered. The calculation model of the surrounding rock pressure of the deep-buried four-hole closely spaced double-arch tunnel is established, and the calculation formula of the surrounding rock pressure is deduced and verified. Finally, the influences of the rock column parameters, excavation procedure, tunnel span, and middle partition wall on the surrounding rock pressure are analyzed. Full article
(This article belongs to the Special Issue Advances in Applied Mathematics, Mechanics and Engineering)
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<p>Derivation flow chart.</p>
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<p>Schematic diagram of theoretical calculation of Pratt arch.</p>
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<p>The influence of load on the post-construction tunnel to the pre-construction tunnel.</p>
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<p>Calculation model of surrounding rock pressure in multi-arch tunnel.</p>
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<p>Calculation model of surrounding rock pressure in closely spaced tunnel.</p>
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<p>Calculation model 1 when inner fracture surfaces intersect.</p>
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<p>Calculation model 2 when the inner fracture plane is not intersected.</p>
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<p>Tunnel naming.</p>
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<p>Load distribution of four-hole double-line parallel closely spaced multi-arch tunnel.</p>
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<p>The load distribution model of the double-arch tunnel.</p>
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<p><math display="inline"><semantics> <mrow> <msub> <mrow> <mi>L</mi> </mrow> <mrow> <mi>z</mi> </mrow> </msub> <mo>&gt;</mo> <mn>0</mn> </mrow> </semantics></math>.</p>
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<p><math display="inline"><semantics> <mrow> <msub> <mrow> <mi>L</mi> </mrow> <mrow> <mi>z</mi> </mrow> </msub> <mo>&lt;</mo> <mn>0</mn> </mrow> </semantics></math>.</p>
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<p>The cross section of the single-line multi-arch tunnel.</p>
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<p>Comparison of vertical surrounding rock pressure for arch roof 1 [<a href="#B29-mathematics-13-00286" class="html-bibr">29</a>].</p>
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<p>Comparison of vertical surrounding rock pressure for arch roof 2.</p>
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<p>Influence of middle rock pillar width on vertical surrounding rock pressure on both sides.</p>
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<p>Influence of middle rock pillar strength on vertical surrounding rock pressure on both sides of the tunnel.</p>
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<p>The pressure reduction rate of the surrounding rock.</p>
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<p>Influence of excavation sequence on vertical surrounding rock pressure of tunnel vault.</p>
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<p>Influence of excavation span on surrounding rock pressure on both sides of the tunnel.</p>
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<p>Influence of the strength of the rock mass at the top of the middle partition wall on the pressure of vertical surrounding rock on both sides of the tunnel.</p>
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15 pages, 3977 KiB  
Article
Effects of Providing Enrichment to Broilers in an Animal Welfare Environment on Productivity, Litter Moisture, Gas Concentration (CO2 and NH3), Animal Welfare Indicators, and Stress Level Concentration
by Chan-Ho Kim, Woo-Do Lee, Ji-Seon Son, Jung-Hwan Jeon, Se-Jin Lim and Su-Mi Kim
Agriculture 2025, 15(2), 182; https://doi.org/10.3390/agriculture15020182 - 15 Jan 2025
Viewed by 391
Abstract
As animal welfare becomes more active in livestock industry, research is being conducted on ways to improve poor housing environments, reduce stress, and meet welfare standards. Among these, environmental enrichment methods are effective in reducing stress and creating a welfare-friendly rearing environment, but [...] Read more.
As animal welfare becomes more active in livestock industry, research is being conducted on ways to improve poor housing environments, reduce stress, and meet welfare standards. Among these, environmental enrichment methods are effective in reducing stress and creating a welfare-friendly rearing environment, but there are few cases of actual application to farms. Therefore, we aimed to investigate the effect of providing pecking materials (grain blocks), known as one of the environmental enrichment methods, to commercial broiler farms. This study used two facilities that could accommodate 32,000 one-day-old broilers (Arbor acres) per building, and two groups (control and treatment groups) were designed after creating two identical areas within each building (total two treatments, two replicates, 16,000 birds per replicate). Two identical zones within the house were created by installing a partition in the center; one side was provided with grain blocks (one grain block per 1000 birds), and the other side was not. Analysis items included productivity (body weight, uniformity), environmental variables (litter and air), welfare indicators (leg, gait score, feather cleanliness score), and serum corticosterone levels. Analysis of all items was conducted twice, on the 19th and 27th, taking into account the farm’s feed change date and slaughter schedule. Other environmental conditions (density, lighting, ventilation, temperature, humidity, feed, and water) were the same. As a result, no difference in productivity was observed according to enrichment, and the quality of litter and air was similar. Also, there was no significant difference in welfare indicators. Interestingly, however, provision of the environment enrichment lowered serum corticosterone levels (p < 0.05). The implications of our study are that grain blocks as a pecking material are an effective way to reduce stress without adversely affecting broiler performance and rearing environment. However, it is still necessary to explore optimal enrichment materials that can help not only the welfare level but also the broiler performance. Full article
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<p>Schematic diagram of the sampling locations and placement of pecking blocks in house. (<b>A</b>) Enrichment placement and sampling locations: The symbol ‘❒’ represents the placement of enrichment (grain-based pecking block), while the symbol ‘●’ represent specific sampling locations. The enrichment blocks are placed in the front, middle and rear sections of the house. Sampling locations ‘●’ symbols indicate where productivity, blood sampling, litter sampling, litter ammonia, carbon dioxide, footpad dermatitis, hock burn, and feather dirtiness were determined. (<b>B</b>) Modified sampling setup with additional partitions: This layout introduces partitions dividing the front, middle, and rear sections to analyze the impact of spatial separations on enrichment and sampling results. The placement of enrichment (‘❒’) and sampling locations ‘●’ remains consistent with the setup in (<b>A</b>).</p>
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<p>Grain block used in the experiment for enrichment. Block sized 25 × 25 × 25 cm, mixed with a grain base in the form of a cube. The block consisted of 50~60% of by-products as brans, 10~20% of grains, 10~15% of limestone, and other ingredients (moisture, molasses, and glycerin), and it was manufactured by mixing raw materials and applying pressure in a mold. One pecking block per 1000 birds was supplied, and all blocks supplied were completely consumed during the experimental period.</p>
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<p>Footpad dermatitis of broilers showing how the degree of damage was scored (<b>a</b>) and feather condition and cleanliness for the scores from 1 to 3 on the body of each broiler (<b>b</b>).</p>
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<p>Footpad dermatitis of broilers showing how the degree of damage was scored (<b>a</b>) and feather condition and cleanliness for the scores from 1 to 3 on the body of each broiler (<b>b</b>).</p>
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<p>Distribution of broiler assessment results according to the level of gait score between the control and enrichment (grain block) groups at 19 and 27 days of age. Gait score (19 days, χ<sup>2</sup> = 0.498, 27 days; χ<sup>2</sup> = 0.891) were assessed in 20% of the flock per house using the AssureWel Meat Chicken Assessment Protocol [<a href="#B26-agriculture-15-00182" class="html-bibr">26</a>]. Higher scores indicate poorer welfare and health outcomes. Fisher’s exact test was used rather than the χ<sup>2</sup> test if at least one expected frequency between the treatments was less than 5. No significant differences were found in the assessment. Control, environmental enrichment (grain-based pecking blocks) not provided; Enrichment, environmental enrichment (grain-based pecking blocks) provided (one grain block per 1000 birds).</p>
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<p>Distribution of broiler assessment results according to the level of footpad dermatitis, hock burn, and feather cleanliness between the control and enrichment (grain-based pecking block) groups at 19 days and 29 days of age on animal welfare-certified farm. Footpad dermatitis (19 days; χ<sup>2</sup> = 0.299, 27 days; χ<sup>2</sup> = 0.559) and feather cleanliness (19 days; χ<sup>2</sup> = 0.828, 27 days; χ<sup>2</sup> = 0.281) were measured in an average of 90 birds/house in the control and enrichment, according to the RSPCA. Higher scores indicate negative outcomes for welfare and health. Fisher’s exact test was used instead of the χ<sup>2</sup> -test if at least one expected frequency was less than 5 between the treatments. No significant differences were found in the assessments. Control, environmental enrichment (grain-based pecking blocks) not provided; enrichment, environmental enrichment (grain-based pecking blocks) provided (one grain block per 1000 birds).</p>
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<p>Distribution of broiler assessment results according to the level of footpad dermatitis, hock burn, and feather cleanliness between the control and enrichment (grain-based pecking block) groups at 19 days and 29 days of age on animal welfare-certified farm. Footpad dermatitis (19 days; χ<sup>2</sup> = 0.299, 27 days; χ<sup>2</sup> = 0.559) and feather cleanliness (19 days; χ<sup>2</sup> = 0.828, 27 days; χ<sup>2</sup> = 0.281) were measured in an average of 90 birds/house in the control and enrichment, according to the RSPCA. Higher scores indicate negative outcomes for welfare and health. Fisher’s exact test was used instead of the χ<sup>2</sup> -test if at least one expected frequency was less than 5 between the treatments. No significant differences were found in the assessments. Control, environmental enrichment (grain-based pecking blocks) not provided; enrichment, environmental enrichment (grain-based pecking blocks) provided (one grain block per 1000 birds).</p>
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15 pages, 4955 KiB  
Article
Fluxes of Cadmium, Chromium, and Lead Along with Throughfall and Stemflow Vary Among Different Types of Subtropical Forests
by Wenfeng Jiang, Jinghui He, Yan Peng, Qiqian Wu, Qiao Yang, Petr Heděnec, Yanbo Huang, Fuzhong Wu and Kai Yue
Forests 2025, 16(1), 152; https://doi.org/10.3390/f16010152 - 15 Jan 2025
Viewed by 578
Abstract
The interaction between forests and precipitation plays a crucial role in the material cycling of forest ecosystems. Atmospheric deposition and rainfall leaching promote the transfer of heavy metals to the forest floor, while canopy exchange may potentially slow this process. Therefore, studying heavy [...] Read more.
The interaction between forests and precipitation plays a crucial role in the material cycling of forest ecosystems. Atmospheric deposition and rainfall leaching promote the transfer of heavy metals to the forest floor, while canopy exchange may potentially slow this process. Therefore, studying heavy metal fluxes and their influencing factors, along with canopy rainfall partitioning, is essential for understanding forest material cycling. We conducted a year-long experiment to examine the dynamics of chromium (Cr), cadmium (Cd), and lead (Pb) concentrations and fluxes in four types of forests (Cunninghamia lanceolata plantations, Castanopsis carlesii plantations, Cas. carlesii natural forests, and Cas. carlesii secondary forests) located in the subtropical regions of southeast China. Results showed that (1) the annual mean concentrations of Cr, Cd, and Pb were 167.6, 13.8, and 6180.5 μg L−1 in the throughfall and 204.7, 28.4, and 2251.1 μg L−1 in the stemflow, respectively, and the annual fluxes of Cr, Cd, and Pb through throughfall were 29.3, 2.4, and 847.7 g ha−1, respectively, and were 1.7, 0.2, and 12.7 g ha−1 through stemflow, respectively; (2) the concentrations of these heavy metals associated with throughfall did not vary between forest types, but their fluxes were highest in Cas. carlesii natural forests; (3) Cr concentration and flux were higher during the rainy than dry seasons, while Cd and Pb concentrations and fluxes showed an opposite trend. Overall, our results indicate that the fluxes of heavy metals along with rainfall partitioning were highest in natural forests and are primarily controlled by meteorological factors, indicating that the conversion of natural forests to other forest types will substantially change the fluxes of heavy metals along with hydrological processes. These results will contribute to a better understanding of the natural fluxes of heavy metals in forest ecosystems and are valuable for sustainable forest management, particularly in the context of forest type transformation. Full article
(This article belongs to the Section Forest Ecology and Management)
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<p>Experimental site location map and sample plot setup.</p>
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<p>Comparison of bark and leaf morphology between <span class="html-italic">Castanopsis carlesii</span> (<b>left</b>) and <span class="html-italic">Cunninghamia lanceolata</span> (<b>right</b>). Photo credit: Wenfeng Jiang.</p>
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<p>Dynamics of heavy metal concentrations in throughfall and stemflow in different types of forests. Values are means with standard error (SE), and asterisks indicate significant differences among forest types at * <span class="html-italic">p</span> &lt; 0.05, ** <span class="html-italic">p</span> &lt; 0.01, *** <span class="html-italic">p</span> &lt; 0.001. Chromium: Cr, cadmium: Cd, lead: Pb.</p>
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<p>Heavy metal concentrations in throughfall and stemflow among different seasons and forest types. Values are means with standard error (SE). Different capital letters represent the statistical differences between dry season and rainy season, and different lowercase letters indicate differences between forest types. * <span class="html-italic">p</span> &lt; 0.05, *** <span class="html-italic">p</span> &lt; 0.001. <span class="html-italic">ns</span> indicates no statistically significant difference. Chromium: Cr, cadmium: Cd, lead: Pb.</p>
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<p>Dynamics of heavy metal fluxes in throughfall and stemflow in different forest types. Values are means with standard error (SE), and asterisks indicate significant differences among forest types at * <span class="html-italic">p</span> &lt; 0.05, ** <span class="html-italic">p</span> &lt; 0.01, *** <span class="html-italic">p</span> &lt; 0.001. Chromium: Cr, cadmium: Cd, lead: Pb.</p>
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<p>Heavy metal fluxes in throughfall and stemflow in different seasons and forest types. Values are means with standard error (SE). Different capital letters represent the statistical differences between dry season and rainy season, and different lowercase letters indicate differences between forest types. * <span class="html-italic">p</span> &lt; 0.05, ** <span class="html-italic">p</span> &lt; 0.01, *** <span class="html-italic">p</span> &lt; 0.001. <span class="html-italic">ns</span> indicates no statistically significant difference. Chromium: Cr, cadmium: Cd, lead: Pb.</p>
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<p>Heavy metal fluxes in throughfall and stemflow across different types of forests under varying rainfall intensities. CCP: <span class="html-italic">Castanopsis carlesii</span> plantation, CLP: <span class="html-italic">Cunninghamia lanceolata</span> plantation, NF: Castanopsis carlesii natural forest, SF: secondary forest of Castanopsis carlesii secondary forest. Values are means with standard error (SE), and different lowercase letters indicate differences between rainfall intensities. Chromium: Cr, cadmium: Cd, lead: Pb.</p>
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12 pages, 3235 KiB  
Article
Predicting Semen Analysis Parameters from Testicular Ultrasonography Images Using Deep Learning Algorithms: An Innovative Approach to Male Infertility Diagnosis
by Lutfullah Sagir, Esat Kaba, Merve Huner Yigit, Filiz Tasci and Hakki Uzun
J. Clin. Med. 2025, 14(2), 516; https://doi.org/10.3390/jcm14020516 - 15 Jan 2025
Viewed by 308
Abstract
Objectives: Semen analysis is universally regarded as the gold standard for diagnosing male infertility, while ultrasonography plays a vital role as a complementary diagnostic tool. This study aims to assess the effectiveness of artificial intelligence (AI)-driven deep learning algorithms in predicting semen analysis [...] Read more.
Objectives: Semen analysis is universally regarded as the gold standard for diagnosing male infertility, while ultrasonography plays a vital role as a complementary diagnostic tool. This study aims to assess the effectiveness of artificial intelligence (AI)-driven deep learning algorithms in predicting semen analysis parameters based on testicular ultrasonography images. Materials and Methods: This study included male patients aged 18–54 who sought evaluation for infertility at the Urology Outpatient Clinic of our hospital between February 2022 and April 2023. All patients underwent comprehensive assessments, including blood hormone profiling, semen analysis, and scrotal ultrasonography, with each procedure being performed by the same operator. Longitudinal-axis images of both testes were obtained and subsequently segmented. Based on the semen analysis results, the patients were categorized into groups according to sperm concentration, progressive motility, and morphology. Following the initial classification, each semen parameter was further subdivided into “low” and “normal” categories. The testicular images from both the right and left sides of all patients were organized into corresponding folders based on their associated laboratory parameters. Three distinct datasets were created from the segmented images, which were then augmented. The datasets were randomly partitioned into an 80% training set and a 20% test set. Finally, the images were classified using the VGG-16 deep learning architecture. Results: The area under the curve (AUC) values for the classification of sperm concentration (oligospermia versus normal), progressive motility (asthenozoospermia versus normal), and morphology (teratozoospermia versus normal) were 0.76, 0.89, and 0.86, respectively. Conclusions: In our study, we successfully predicted semen analysis parameters using data derived from testicular ultrasonography images through deep learning algorithms, representing an innovative application of artificial intelligence. Given the limited published research in this area, our study makes a significant contribution to the field and provides a foundation for future validation studies. Full article
(This article belongs to the Special Issue Clinical Advances in Artificial Intelligence in Urology)
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<p>Image of the testis captured along the longitudinal axis.</p>
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<p>Cropped image of the testis.</p>
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<p>Flowchart of the study.</p>
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<p>Confusion matrix of the test set for the sperm concentration group (0 = oligospermia, and 1 = normal).</p>
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<p>Confusion matrix of the test set for the progressive motility group (0 = asthenozoospermia, and 1 = normal).</p>
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<p>Confusion matrix of the test set for the morphology group (0 = teratozoospermia, and 1 = normal).</p>
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<p>ROC curves for the test set of the sperm concentration, progressive motility, and morphology groups, respectively.</p>
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24 pages, 2695 KiB  
Article
Hybrid Nanocomposite Mini-Tablet to Be Applied into the Post-Extraction Socket: Matching the Potentialities of Resveratrol-Loaded Lipid Nanoparticles and Hydroxyapatite to Promote Alveolar Wound Healing
by Viviana De Caro, Giada Tranchida, Cecilia La Mantia, Bartolomeo Megna, Giuseppe Angellotti and Giulia Di Prima
Pharmaceutics 2025, 17(1), 112; https://doi.org/10.3390/pharmaceutics17010112 - 15 Jan 2025
Viewed by 338
Abstract
Background/Objectives: Following tooth extraction, resveratrol (RSV) can support healing by reducing inflammation and microbial risks, though its poor solubility limits its effectiveness. This study aims to develop a solid nanocomposite by embedding RSV in lipid nanoparticles (mLNP) within a hydrophilic matrix, to [...] Read more.
Background/Objectives: Following tooth extraction, resveratrol (RSV) can support healing by reducing inflammation and microbial risks, though its poor solubility limits its effectiveness. This study aims to develop a solid nanocomposite by embedding RSV in lipid nanoparticles (mLNP) within a hydrophilic matrix, to the scope of improving local delivery and enhancing healing. Hydroxyapatite (HXA), often used as a bone substitute, was added to prevent post-extraction alveolus volume reduction. Methods: The mLNP-RSV dispersion was mixed with seven different polymers in various mLNP/polymer ratios. Following freeze-drying, the powders were redispersed, and the resulting dispersions were tested by DLS experiments. Then, the best two nanocomposites underwent extensive characterization by SEM, XRD, FTIR, Raman spectroscopy, and thermal analysis as well as in vitro partitioning studies aimed at verifying their ability to yield the mLNP-RSV from the hydrophilic matrix to a lipophilic tissue. The characterizations led to identify the best nanocomposite, which was further combined with HXA to obtain hybrid nanocomposites, further evaluated as pharmaceutical powders or in form of mini-tablets. Results: PEG-based nanocomposites emerged as optimal and, following HXA insertion, the resulting powders revealed adequate bulk properties, making them useful as a pharmaceutical intermediate to produce ≈59 mm3 mini-tablets, compliant with the post-extraction socket. Moreover, they were proven ex vivo to be able to promote RSV and GA accumulation into the buccal tissue over time. Conclusions: The here-proposed mini-tablet offers an innovative therapeutic approach for alveolar wound healing promotion as they led to a standardized dose administration, while being handy and stable in terms of physical solid identity as long as it takes to suture the wound. Full article
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Figure 1

Figure 1
<p>SEM micrographs of mLNP-RSV-P6K at (<b>a</b>) 40,000× and (<b>b</b>) 150,000× magnification and of mLNP-RSV-P10K at (<b>c</b>) 40,000× and (<b>d</b>) 150,000× magnification.</p>
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<p>XRD pattern of (<b>a</b>) RSV, (<b>b</b>) mLNP-RSV-P6K, and (<b>c</b>) mLNP-RSV-P10K.</p>
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<p>FTIR spectra of PEG, RSV, mLNP-RSV-P6K, and mLNP-RSV-P10K.</p>
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<p>Raman spectra of (<b>a</b>) mLNP-RSV-P6K and (<b>b</b>) mLNP-RSV-P10K.</p>
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<p>TG curves in dynamic dry air for (<b>a</b>) mLNP-RSV-P6K and (<b>b</b>) mLNP-RSV-P10K compared with RSV and PEG6K pure compounds.</p>
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<p>Percentage of RSV partitioned into the lipophilic acceptor compartment as a function of incubation time when loading into the donor compartment: free RSV as a solution (black), fresh mLNP-RSV dispersion (red), redispersed mLNP-RSV-P6K nanocomposite (blue), and redispersed mLNP-RSV-P10K nanocomposite (green).</p>
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<p>Photographs of mLNP-RSV-P10K powder at (<b>A</b>) 4× and (<b>B</b>) 10× magnification; mLNP-RSV-P10K-HXA-1 powder at (<b>C</b>) 4× and (<b>D</b>) 10× magnification; and mLNP-RSV-P10K-HXA-2 powder at (<b>E</b>) 4× and (<b>F</b>) 10× magnification.</p>
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<p>Percentage dose of RSV (black) and GA (orange) accumulated into the buccal mucosa loaded into the donor compartment as a function of incubation time when evaluating (<b>A</b>) the mLNP-RSV-P10K free powder and (<b>B</b>) the mLNP-RSV-P10K mini-tablet. Means (n = 6) ± SE.</p>
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<p>Preparation of the mLNP-RSV [<a href="#B19-pharmaceutics-17-00112" class="html-bibr">19</a>].</p>
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